ExternalVendorCode/go-attestation
1
0
Fork 0
mirror of https://github.com/google/go-attestation.git synced 2025-02-20 17:02:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Use go-tpm NewQuoteInfo (#18)

Browse Source
This commit is contained in:
DenisKarch 2019-04-24 13:55:44 -07:00 committed by Tom D
parent 0d33e753a1
commit 97d50a1edc
3 changed files with 6 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
attest/tpm_windows.go
View File

@ -19,7 +19,6 @@ package attest
import (
"crypto"
"crypto/rand"
"crypto/sha1"
"encoding/base64"
"encoding/binary"
"encoding/json"
@ -266,35 +265,6 @@ func (k *Key) ActivateCredential(tpm *TPM, in EncryptedCredential) ([]byte, erro
}
}
func constructQuote(data, nonce []byte) ([]byte, error) {
composite := struct {
Mask tpmutil.U16Bytes
Data tpmutil.U32Bytes
}{
Mask: []byte{0xff, 0xff, 0xff},
Data: data,
}
compositeBytes, err := tpmutil.Pack(composite)
if err != nil {
return nil, fmt.Errorf("failed to pack TPM_PCR_COMPOSITE: %v", err)
}
version := [4]byte{0x01, 0x01, 0x00, 0x00}
QUOT := [4]byte{'Q', 'U', 'O', 'T'}
info := struct {
Version [4]byte
QUOT [4]byte
Digest [20]byte
Nonce [20]byte
}{
version,
QUOT,
sha1.Sum(compositeBytes),
sha1.Sum(nonce),
}
return tpmutil.Pack(info)
}
func (k *Key) quote12(tpm io.ReadWriter, nonce []byte) (*Quote, error) {
selectedPCRs := make([]int, 24)
for pcr, _ := range selectedPCRs {
@ -308,7 +278,7 @@ func (k *Key) quote12(tpm io.ReadWriter, nonce []byte) (*Quote, error) {
// Construct and return TPM_QUOTE_INFO
// Returning TPM_QUOTE_INFO allows us to verify the Quote at a higher resolution
// and matches what go-tspi returns.
quote, err := constructQuote(pcrc, nonce)
quote, err := tpm1.NewQuoteInfo(pcrc, nonce)
if err != nil {
return nil, fmt.Errorf("failed to construct Quote Info: %v", err)
}

2
go.mod
View File

@ -4,7 +4,7 @@ go 1.12
require (
github.com/google/certificate-transparency-go v1.0.22-0.20190403155334-84853901c6b8
github.com/google/go-tpm v0.1.2-0.20190419233512-b3f77a535648
github.com/google/go-tpm v0.1.2-0.20190410172553-e84d59d0589e
github.com/google/go-tpm-tools v0.0.0-20190328013357-5d2fd7f4b3e5
github.com/google/go-tspi v0.2.0
golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd // indirect

6
go.sum
View File

@ -2,8 +2,10 @@ github.com/google/certificate-transparency-go v1.0.21 h1:Yf1aXowfZ2nuboBsg7iYGLm
github.com/google/certificate-transparency-go v1.0.21/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
github.com/google/certificate-transparency-go v1.0.22-0.20190403155334-84853901c6b8 h1:pZtGL2P6rU7wOnemTcvTgoH9s+QB646LB5dBcZ1w5yE=
github.com/google/certificate-transparency-go v1.0.22-0.20190403155334-84853901c6b8/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
github.com/google/go-tpm v0.1.2-0.20190419233512-b3f77a535648 h1:LiQYdZM/B/5OQj6eZO7drYaP7LCth3/1Ohd/F4exPFY=
github.com/google/go-tpm v0.1.2-0.20190419233512-b3f77a535648/go.mod h1:70+xJCEPKoR1UFyG62ftF/qOTka+OVFVQpNcWmByY0g=
github.com/google/go-tpm v0.1.1 h1:Qwvy1ZQsQElHIb/7PCqE4OpiBwDRMMHpu2a2q16S2hI=
github.com/google/go-tpm v0.1.1/go.mod h1:OGEdc1XfzTyNEQyahgeXVq+E0lMq3Vu/Y3bT9EfpRnE=
github.com/google/go-tpm v0.1.2-0.20190410172553-e84d59d0589e h1:cbbVm1AQhiczA2kTjpROSbTZf2XVSS/DrnSjrqOo2wo=
github.com/google/go-tpm v0.1.2-0.20190410172553-e84d59d0589e/go.mod h1:OGEdc1XfzTyNEQyahgeXVq+E0lMq3Vu/Y3bT9EfpRnE=
github.com/google/go-tpm-tools v0.0.0-20190328013357-5d2fd7f4b3e5 h1:/moKuMi+BJ+OEva3jTms88ruyRkxaZn+f9EIZoGpQeY=
github.com/google/go-tpm-tools v0.0.0-20190328013357-5d2fd7f4b3e5/go.mod h1:ApmLTU8fd5JJJ4J67y9sV16nOTR00GW2OabMwk7kSnE=
github.com/google/go-tspi v0.2.0 h1:PMrHThARFgHtsCF6B8YNjLlnnGMDdFjVHZnxaqkcbzQ=